//
//  UIView+Fantasia.m
//  Example
//
//  Copy from https://github.com/matt-holden/UIViewHelpers
//

#define INFINITE_DEPTH -1 // Only used internally for private API

#define SuppressPerformSelectorLeakWarning(LeakyCode) \
do { \
_Pragma("clang diagnostic push") \
_Pragma("clang diagnostic ignored \"-Warc-performSelector-leaks\"") \
LeakyCode; \
_Pragma("clang diagnostic pop") \
} while (0)

#import "UIView+Fantasia.h"

@implementation UIView (Fantasia)

- (void)removeAllSubviews {
    while (self.subviews.count) {
        UIView* child = self.subviews.lastObject;
        [child removeFromSuperview];
    }
}

- (UIImage *)snapshot
{
    return [self snapshotAfterScreenUpdates:NO];
}

- (UIImage *)snapshotAfterScreenUpdates:(BOOL)afterUpdates
{
    UIGraphicsBeginImageContextWithOptions(self.bounds.size, NO, [UIScreen mainScreen].scale);
    
    if ([self respondsToSelector:@selector(drawViewHierarchyInRect:afterScreenUpdates:)]) {
        
        [self drawViewHierarchyInRect:self.bounds afterScreenUpdates:afterUpdates];
    } else {
        [self.layer renderInContext:UIGraphicsGetCurrentContext()];
    }
    
    UIImage *snapshotImage = UIGraphicsGetImageFromCurrentImageContext();
    UIGraphicsEndImageContext();
    
    return snapshotImage;
}

- (UIImage *)toImage {
    UIGraphicsBeginImageContextWithOptions(self.bounds.size, self.opaque, 0.0);
    [self.layer renderInContext:UIGraphicsGetCurrentContext()];

    UIImage * img = UIGraphicsGetImageFromCurrentImageContext();

    UIGraphicsEndImageContext();

    return img;
}


#pragma mark - frame
- (CGFloat)left {
    return self.frame.origin.x;
}

- (void)setLeft:(CGFloat)x {
    CGRect frame = self.frame;
    frame.origin.x = x;
    self.frame = frame;
}

- (CGFloat)top {
    return self.frame.origin.y;
}

- (void)setTop:(CGFloat)y {
    CGRect frame = self.frame;
    frame.origin.y = y;
    self.frame = frame;
}

- (CGFloat)right {
    return self.frame.origin.x + self.frame.size.width;
}

- (void)setRight:(CGFloat)right {
    CGRect frame = self.frame;
    frame.origin.x = right - frame.size.width;
    self.frame = frame;
}

- (CGFloat)bottom {
    return self.frame.origin.y + self.frame.size.height;
}

- (void)setBottom:(CGFloat)bottom {
    CGRect frame = self.frame;
    frame.origin.y = bottom - frame.size.height;
    self.frame = frame;
}

- (CGFloat)centerX {
    return self.center.x;
}

- (void)setCenterX:(CGFloat)centerX {
    self.center = CGPointMake(centerX, self.center.y);
}

- (CGFloat)centerY {
    return self.center.y;
}

- (void)setCenterY:(CGFloat)centerY {
    self.center = CGPointMake(self.center.x, centerY);
}

- (CGFloat)width {
    return self.frame.size.width;
}

- (void)setWidth:(CGFloat)width {
    CGRect frame = self.frame;
    frame.size.width = width;
    self.frame = frame;
}

- (CGFloat)height {
    return self.frame.size.height;
}

- (void)setHeight:(CGFloat)height {
    CGRect frame = self.frame;
    frame.size.height = height;
    self.frame = frame;
}

- (CGPoint)origin {
    return self.frame.origin;
}

- (void)setOrigin:(CGPoint)origin {
    CGRect frame = self.frame;
    frame.origin = origin;
    self.frame = frame;
}

- (CGSize)size {
    return self.frame.size;
}

- (void)setSize:(CGSize)size {
    CGRect frame = self.frame;
    frame.size = size;
    self.frame = frame;
}

@end